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Finding the Fourth Proportional to 260,533.80, 389,763.90 and 225,858.60

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Solution

The fourth proportional to 260,533.80, 389,763.90 and 225,858.60 is: 337,889.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,533.80 : 389,763.90 = 225,858.60 : x
  2. Step 2: Convert to fraction form
    260,533.80/389,763.90 = 225,858.60/x
  3. Step 3: Cross multiply
    260,533.80x = 389,763.90 × 225,858.60
  4. Step 4: Simplify right side
    260,533.80x = 88,031,528,784.54
  5. Step 5: Solve for x
    x = 88,031,528,784.54/260,533.80
  6. Step 6: Final answer
    x = 337,889.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.